<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    * {
        margin: 0;
        padding: 0;
    }

    ul li {
        list-style: none;
        float: left;
        width: 500px;
    }

    ul {
        /* width: 2000px; */

        position: absolute;

    }

    img {
        width: 500px;
        height: 300px;
        display: block;
    }
    #jt{
         display: none;
    }
    #jt span {
       /*  display : block; */
        position: absolute;
        height: 50px;
        width: 50px;
        background: rgba(0, 0, 0, .8);
        color: #fff;
        font: 30px/50px "";
        text-align: center;
        font-weight: 800;
        cursor: pointer;
        z-index: 1;
         
    }

    .left {
        top: 40%;
        left: 0px;
    }

    .right {
        right: 0px;
        top: 40%;
    }

    #marsk {
        width: 500px;
        height: 300px;

        position: relative;
        overflow: hidden;
    }

    #window {
        border: 1px solid #ccc;
        padding: 5px;
        width: 510px;
        margin: 50px auto;
       display: flex;
       justify-content: center;
    }

    #index {
        position: absolute;
        bottom: 5px;
        left: 150px;
        display: flex;
        justify-content: space-around;
    }

    #index .indexs {

        z-index: 20;
        width: 40px;
        height:40px;
        background-color: rgba(167, 167, 167, .5);
        font: 25px/40px "";
        text-align: center;
        border-radius: 50%;
        cursor: pointer;
        margin-left: 10px;
    }

    #index .color {
        background-color: white;
    }
</style>

<body>
    <div id="window">
        <div id="marsk">
            <ul id="uu">
                <li>
                    <img src="./lbt/1.png" alt="">
                </li>
                <li>
                    <img src="../lbt/2.png" alt="">
                </li>
                <li>
                    <img src="./lbt/3.png" alt="">
                </li>
                <li>
                    <img src="./lbt/4.png" alt="">
                </li>

            </ul>
            <div id="jt">
                <span class="left">&lt;</span>
                <span class="right">&gt;</span>
            </div>

           

        </div>

    </div>
    <script src="Fd.js"></script>
    <script src="./move.js"></script>
    <script src="./indexLB.js"></script>
</body>

</html>